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CSF levels of Tau, Aβ1–42, pTau181p and ratios of Tau/Aβ1–42, pTau181p/Aβ1–42 in the three diagnostic groups. Error bars denote standard deviations. There were significant differences between groups (AD>MCI>normal) for the pTau181p and pTau181p/Aβ1–42 measures (p < 0.05). The differences between AD and MCI were not significant for CSF levels of Tau, Aβ1–42 and ratios of Tau/Aβ1–42.
